std::ranges::chunk_view<V>::iterator<Const>::iterator

 

C++

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功能特性测试宏 (C++20)

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概念库 (C++20)

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符号索引

外部库

 

范围库

范围访问 begin cbegin   end cend rbegin crbegin   rend crend size ssize   data cdata empty

范围转换 std::from_range_t std::from_range (C++23)(C++23)     to (C++23)

悬垂迭代器处理 dangling borrowed_iterator_t borrowed_subrange_t

范围原语
range_size_trange_difference_trange_value_t elements_of (C++23)	iterator_tconst_iterator_tsentinel_tconst_sentinel_t (C++23)(C++23)	range_reference_trange_const_reference_trange_rvalue_reference_trange_common_reference_t (C++23)

范围概念
range borrowed_range    sized_range	common_range view viewable_range	input_range output_range forward_range	bidirectional_range    random_access_range contiguous_range	constant_range (C++23)

视图
view_interface	subrange

范围工厂
empty_viewviews::empty	single_viewviews::single	basic_istream_viewviews::istream	iota_viewviews::iota	repeat_viewviews::repeat (C++23)(C++23)

范围适配器
views::all_tviews::all ref_view owning_view as_rvalue_viewviews::as_rvalue (C++23)(C++23)   filter_viewviews::filter transform_viewviews::transform take_viewviews::take take_while_viewviews::take_while concat_viewviews::concat (C++26)(C++26)	drop_viewviews::drop drop_while_viewviews::drop_while join_viewviews::join join_with_viewviews::join_with (C++23)(C++23)   lazy_split_viewviews::lazy_split split_viewviews::split views::counted common_viewviews::common	reverse_viewviews::reverse as_const_viewviews::as_const (C++23)(C++23) elements_viewviews::elements keys_viewviews::keys values_viewviews::values enumerate_viewviews::enumerate (C++23)(C++23) zip_viewviews::zip (C++23)(C++23) zip_transform_viewviews::zip_transform (C++23)(C++23)	adjacent_viewviews::adjacent (C++23)(C++23) views::pairwise (C++23) adjacent_transform_viewviews::adjacent_transform (C++23)(C++23) views::pairwise_transform (C++23) chunk_viewviews::chunk (C++23)(C++23) slide_viewviews::slide (C++23)(C++23) chunk_by_viewviews::chunk_by (C++23)(C++23) stride_viewviews::stride (C++23)(C++23) cartesian_product_viewviews::cartesian_product (C++23)(C++23)

范围生成器 std::generator (C++23)

范围适配器闭包对象 range_adaptor_closure (C++23)

范围适配器对象

辅助项
copyable-box movable-box (C++23 前)  (C++23)	simple-view non-propagating-cache

 

std::ranges::chunk_view

成员函数
chunk_view::chunk_view
chunk_view::base
chunk_view::begin
chunk_view::end
chunk_view::size
input_range 类 推导指引 outer-iterator chunk_view::outer-iterator::outer-iterator chunk_view::outer-iterator::operator= chunk_view::outer-iterator::operator* chunk_view::outer-iterator::operator++ chunk_view::outer-iterator::operator++(int) operator==(chunk_view::outer-iterator) operator-(chunk_view::outer-iterator) outer-iterator::value_type chunk_view::outer-iterator::value_type::value_type   chunk_view::outer-iterator::value_type::begin chunk_view::outer-iterator::value_type::end chunk_view::outer-iterator::value_type::size inner-iterator chunk_view::inner-iterator::inner-iterator chunk_view::inner-iterator::operator= chunk_view::inner-iterator::base chunk_view::inner-iterator::operator* chunk_view::inner-iterator::operator++ chunk_view::inner-iterator::operator++(int) operator==(chunk_view::inner-iterator) operator-(chunk_view::inner-iterator) iter_move(chunk_view::inner-iterator) iter_swap(chunk_view::inner-iterator)	forward_range 类模板 iterator chunk_view::iterator::iterator chunk_view::iterator::base chunk_view::iterator::operator* chunk_view::iterator::operator[] chunk_view::iterator::operator++ chunk_view::iterator::operator++(int) chunk_view::iterator::operator-- chunk_view::iterator::operator--(int) chunk_view::iterator::operator+= chunk_view::iterator::operator-= operator==(chunk_view::iterator) operator<(chunk_view::iterator) operator>(chunk_view::iterator) operator<=(chunk_view::iterator) operator>=(chunk_view::iterator) operator<=>(chunk_view::iterator) operator+(chunk_view::iterator) operator-(chunk_view::iterator)

 

/*iterator*/() = default;	(1)	(C++23 起)
constexpr /*iterator*/( /*iterator*/<!Const> i )     requires         Const and         std::convertible_to<ranges::iterator_t<V>, ranges::iterator_t<Base>> and         std::convertible_to<ranges::sentinel_t<V>, ranges::sentinel_t<Base>>;	(2)	(C++23 起)
private: constexpr /*iterator*/( Parent* parent,                         ranges::iterator_t<Base> current,                         ranges::range_difference_t<Base> missing = 0 );	(3)	(仅用于阐述*)

构造迭代器。

1) 默认构造函数，值初始化底层数据成员：

• current_ 以 ranges::iterator_t<Base>() 初始化，
• end_ 以 ranges::sentinel_t<Base>() 初始化，
• n_ 以 ​0​ 初始化，
• missing_ 以 ​0​ 初始化。

2) 从 /*iterator*/<false> 到 /*iterator*/<true> 的转换，初始化底层数据成员：

• current_ 以 std::move(i.current_) 初始化，
• end_ 以 std::move(i.end_) 初始化，
• n_ 以 i.n_ 初始化，
• missing_ 以 i.missing_ 初始化。

3) 用于 ranges::chunk_view::begin 和 ranges::chunk_view::end 的私有构造函数，此构造函数无法被用户访问，初始化底层数据成员：

• current_ 以 current 初始化，
• end_ 以 ranges::end(parent->base_) 初始化，
• n_ 以 parent->n_ 初始化，
• missing_ 以 missing 初始化。

参数

i	-	/*iterator*/<false>
parent	-	指向所持有的 chunk_view 的指针
current	-	指向当前块首部的迭代器
missing	-	当前块的预期大小（n_）与实际大小的差值